Commit b22503a9 authored Jul 26, 2013 by Ezequiel Garcia Committed by Jason Cooper Aug 06, 2013

PCI: mvebu: Check valid base address before port setup



This driver does not fail to probe when it cannot obtain
a port base address. Therefore, add a check for NULL base address
before setting up the port, which prevents a kernel panic in such
cases.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

parent 11be6547

drivers/pci/host/pci-mvebu.c

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -662,6 +662,8 @@ static int __init mvebu_pcie_setup(int nr, struct pci_sys_data *sys)

	for (i = 0; i < pcie->nports; i++) {		for (i = 0; i < pcie->nports; i++) {
	struct mvebu_pcie_port *port = &pcie->ports[i];		struct mvebu_pcie_port *port = &pcie->ports[i];
			if (!port->base)
			continue;
	mvebu_pcie_setup_hw(port);		mvebu_pcie_setup_hw(port);
	}		}